A serious crime punishable by more than a year in prison or by death. A felony, in many common law legal systems, is the term for a "very serious" crime; misdemeanors are considered to be less serious. Crimes which are commonly considered to be felonies include: aggravated assault, arson, burglary, murder, and rape. Those who are convicted of a felony are known as felons. Originally, felonies were crimes for which the punishment was either death or forfeiture of property.